Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Loaders/OrthancSeriesVolumeProgressiveLoader.h @ 1871:7053b8a0aaec

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Jan 2022 11:18:48 +0100
parents 3889ae96d2e9
children 07964689cb0b
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
1871
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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22
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23
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24 #pragma once
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25
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26 #include "../Loaders/IFetchingItemsSorter.h"
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27 #include "../Loaders/IFetchingStrategy.h"
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28 #include "../Messages/IObservable.h"
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29 #include "../Messages/ObserverBase.h"
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30 #include "../Oracle/GetOrthancImageCommand.h"
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31 #include "../Oracle/GetOrthancWebViewerJpegCommand.h"
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32 #include "../Oracle/IOracle.h"
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33 #include "../Oracle/OrthancRestApiCommand.h"
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34 #include "../Toolbox/SlicesSorter.h"
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35 #include "../Volumes/DicomVolumeImage.h"
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36 #include "../Volumes/IVolumeSlicer.h"
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38 #include "../Volumes/IGeometryProvider.h"
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39
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40
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41 #include <boost/shared_ptr.hpp>
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42
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43 namespace OrthancStone
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44 {
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45 class ILoadersContext;
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46 /**
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47 This class is used to manage the progressive loading of a volume that
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48 is stored in a Dicom series.
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49 */
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50 class OrthancSeriesVolumeProgressiveLoader :
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51 public ObserverBase<OrthancSeriesVolumeProgressiveLoader>,
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52 public IObservable,
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53 public IVolumeSlicer,
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54 public IGeometryProvider
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55 {
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56 public:
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57 class ISlicePostProcessor
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58 {
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59 public:
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60 virtual void ProcessCTDicomSlice(const Orthanc::DicomMap& dicom) = 0;
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61 };
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62
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63 private:
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64 static const unsigned int QUALITY_00 = 0;
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65 static const unsigned int QUALITY_01 = 1;
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66 static const unsigned int QUALITY_02 = 2;
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67
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68 class ExtractedSlice;
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70
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71 /** Helper class internal to OrthancSeriesVolumeProgressiveLoader */
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72 class SeriesGeometry : public boost::noncopyable
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73 {
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74 private:
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75 void CheckSlice(size_t index,
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76 const DicomInstanceParameters& reference) const;
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77
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78 void CheckVolume() const;
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79
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80 void Clear();
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81
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82 void CheckSliceIndex(size_t index) const;
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83
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84 std::unique_ptr<VolumeImageGeometry> geometry_;
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85 std::vector<DicomInstanceParameters*> slices_;
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86 std::vector<uint64_t> slicesRevision_;
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87
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88 public:
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89 ~SeriesGeometry()
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90 {
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91 Clear();
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92 }
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93
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94 void ComputeGeometry(SlicesSorter& slices);
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95
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96 virtual bool HasGeometry() const
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97 {
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98 return geometry_.get() != NULL;
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99 }
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100
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101 virtual const VolumeImageGeometry& GetImageGeometry() const;
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102
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103 const DicomInstanceParameters& GetSliceParameters(size_t index) const;
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104
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105 uint64_t GetSliceRevision(size_t index) const;
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106
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107 void IncrementSliceRevision(size_t index);
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108 };
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109
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110 void ScheduleNextSliceDownload();
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111
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112 void LoadGeometry(const OrthancRestApiCommand::SuccessMessage& message);
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113
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114 void SetSliceContent(unsigned int sliceIndex,
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115 const Orthanc::ImageAccessor& image,
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116 unsigned int quality);
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117
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118 void LoadBestQualitySliceContent(const GetOrthancImageCommand::SuccessMessage& message);
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119
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120 void LoadJpegSliceContent(const GetOrthancWebViewerJpegCommand::SuccessMessage& message);
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121
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122 ILoadersContext& loadersContext_;
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123 bool active_;
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124 bool progressiveQuality_;
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125 bool startCenter_;
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126 unsigned int simultaneousDownloads_;
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127 SeriesGeometry seriesGeometry_;
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128 boost::shared_ptr<DicomVolumeImage> volume_;
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129 std::unique_ptr<IFetchingItemsSorter::IFactory> sorter_;
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130 std::unique_ptr<IFetchingStrategy> strategy_;
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131 std::vector<unsigned int> slicesQuality_;
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132 bool volumeImageReadyInHighQuality_;
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133 boost::shared_ptr<ISlicePostProcessor> slicePostProcessor_;
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134
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135 /** See priority setters/getters below */
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136 int medadataSchedulingPriority_;
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137
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138 /** See priority setters/getters below */
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139 int sliceSchedulingPriority_;
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140
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141 OrthancSeriesVolumeProgressiveLoader(
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142 ILoadersContext& loadersContext,
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143 boost::shared_ptr<DicomVolumeImage> volume,
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144 bool progressiveQuality);
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145
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146 public:
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147 ORTHANC_STONE_DEFINE_ORIGIN_MESSAGE(__FILE__, __LINE__, VolumeImageReadyInHighQuality, OrthancSeriesVolumeProgressiveLoader);
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148
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149 /**
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150 See doc for the progressiveQuality_ field
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151 */
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152 static boost::shared_ptr<OrthancSeriesVolumeProgressiveLoader> Create(
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153 ILoadersContext& context,
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154 boost::shared_ptr<DicomVolumeImage> volume,
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155 bool progressiveQuality = false);
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156
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157 virtual ~OrthancSeriesVolumeProgressiveLoader();
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158
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159 void SetStartCenter(bool startCenter);
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160
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161 void SetSimultaneousDownloads(unsigned int count);
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162
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163 /**
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164 Sets the relative priority of the requests for metadata.
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165 - if p < PRIORITY_HIGH (-1) , the requests will be high priority
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166 - if PRIORITY_LOW (100) > p > PRIORITY_HIGH , the requests will be medium priority
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167 - if p > PRIORITY_LOW , the requests will be low priority
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168
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169 Default is 0 (medium)
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170 */
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171 void SetMetadataSchedulingPriority(int p);
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172
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173 /** @see SetMetadataSchedulingPriority */
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174 int GetMetadataSchedulingPriority() const;
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175
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176 /** Same as SetMetadataSchedulingPriority, for slices. Default is 0. */
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177 void SetSliceSchedulingPriority(int p);
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178
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179 /** @see SetSliceSchedulingPriority */
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180 int GetSliceSchedulingPriority() const;
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181
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182 /** Sets priorities for all requests. @see SetMetadataSchedulingPriority */
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183 void SetSchedulingPriority(int p);
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184
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185 void SetDicomSlicePostProcessor(boost::shared_ptr<ISlicePostProcessor> slicePostProcessor)
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186 {
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187 // this will delete the previously stored slice processor, if any
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188 slicePostProcessor_ = slicePostProcessor;
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189 }
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190
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191 boost::shared_ptr<ISlicePostProcessor> GetDicomSlicePostProcessor()
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192 {
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193 // this could be empty!
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194 return slicePostProcessor_;
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195 }
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196
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197 bool IsVolumeImageReadyInHighQuality() const
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198 {
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199 return volumeImageReadyInHighQuality_;
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200 }
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201
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202 void LoadSeries(const std::string& seriesId);
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203
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204 /**
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205 This getter is used by clients that do not receive the geometry through
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206 subscribing, for instance if they are created or listening only AFTER the
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207 "geometry loaded" message is broadcast
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208 */
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209 bool HasGeometry() const ORTHANC_OVERRIDE
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210 {
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211 return seriesGeometry_.HasGeometry();
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212 }
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213
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214 /**
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215 Same remark as HasGeometry
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216 */
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217 const VolumeImageGeometry& GetImageGeometry() const ORTHANC_OVERRIDE
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218 {
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219 return seriesGeometry_.GetImageGeometry();
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220 }
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221
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222 /**
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223 When a slice is requested, the strategy algorithm (that defines the
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224 sequence of resources to be loaded from the server) is modified to
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225 take into account this request (this is done in the ExtractedSlice ctor)
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226 */
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227 virtual IExtractedSlice*
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228 ExtractSlice(const CoordinateSystem3D& cuttingPlane) ORTHANC_OVERRIDE;
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229 };
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230 }